Pith Number

pith:DZLQEPA2

pith:2021:DZLQEPA272YWM6EEMIL3INVV4N

not attested not anchored not stored refs pending

Coded Alternating Least Squares for Straggler Mitigation in Distributed Recommendations

Jianping Wang, Jingjing Zhang, Linqi Song, Qifa Yan, Siyuan Wang

arxiv:2105.03631 v1 · 2021-05-08 · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DZLQEPA272YWM6EEMIL3INVV4N}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T02:38:37.540519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e57023c1afeb16678846217b436b5e37f77649b08af3d7d9f079bd8a8cfbdcc

Aliases

arxiv: 2105.03631 · arxiv_version: 2105.03631v1 · doi: 10.48550/arxiv.2105.03631 · pith_short_12: DZLQEPA272YW · pith_short_16: DZLQEPA272YWM6EE · pith_short_8: DZLQEPA2

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DZLQEPA272YWM6EEMIL3INVV4N \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1e57023c1afeb16678846217b436b5e37f77649b08af3d7d9f079bd8a8cfbdcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b58f7c78c3754d4b354e1ed39d8d859c5c769a2f26852ad56c5ed8b41d43d4d0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-05-08T08:13:58Z",
    "title_canon_sha256": "f955205da3e1c6200b6f7cc9ce802765740d351ceaf036e7994ce48420137c9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.03631",
    "kind": "arxiv",
    "version": 1
  }
}